force headers competition headers truck force headers footnotes 1 this system ... available with fittings to accommodate air injection manifold add a 0 in front of ... #dot2-7521-c 9 installation requires air conditioning bracket #10925 left side ... on 1979 and later vehicles with short compressors use stock bracket 10 will not fit ... motors equipped with air injection pump without modification 11 ... emission control devices i.e e.g.r and air pump fittings 37 this header cannot be ... number consists of headers with welded air injection fittings a hot air kit an ... exhaust headpipes 72 will not fit with air conditioning 73 1990 models require the ... with provisions for oxygen sensor all parts are coated with hooker s metallic ... installed to accommodate factory air pollution control device 86 header ...